Clostjbe lock



Nov. 27, 1928. 1,693,544

M. H. BORZIN ET AL CLOSURE LOCK Filed Nov. 11', 1926 Patented Nov. 27, 1928.

UNITED STATES 1,693,544 rArsToFFIcE.

' MILON H. BORZIN AND ARSENIE MITRU, OF CHICAGO, ILLINOIS.

CLOSURE LooK.

Application filed November 11, 1926- Serial No. 147,830.

This invention relates to closure locks, and especiallyto an improved combination lock of simple and effective form and including a part of the closure which is movable into and out of the locking position.

One object of the invention is to provide a lock of this character which, while particularly useful in connection with pencil boxes and the like, such as used by school children, is also useful in connection with a closure for boxes and receptacles of oth'er'kinds.

Another object is tofprovide a device of this character which is very simple and comparatively inexpensive while beingthoroughvly practical and effective. Another object is to provide a device of this character which can be manufactured with a large number of combinations, so that each box or receptacle of a largenumber can have a combination differing from the other devices of the said large number. 7

Other objects and important features are pointed out or implied in the following'details of description, in connection with the accompanying-drawings in which:

Figure 1 is a top plan view of a box pro vided with a closure which includes certain essential elements of the combination lock made in accordance with this invention.

Fig. 2 is a side elevation of the box shown in Fig. 1. a

Fig. 8 is a topplan view of the lid or closure of the box shownin Figures 1 and 2.

Fig. 4 is a top plan view of a metal disk which forms partof the combination lock.

Fig. 5 is a bottom plan view of the upper lock member having a coiled spring fitted around itscentral opening.

Fig. 6 is a longitudinal central sectional view through the combination lock including the closure shown in Figs. 3 and 7. Fig. 7 is an end view of the cover or'closui'e.

Fig. 8 is a detail view showing a modified form of the interlocking end wall and closure.

Referring to these drawings in detail, in which similar characters correspond with similar parts throughout the several views, and in which the elongated structure here shown is illustrative of one of the many forms to which this invention is applicable: The.

main body 10 of the box consists of a bottom, side walls, and end walls, the latter being indicated at 11 and 12 respectively. The end wall 11 is preferably the same height as the side walls, and is relatively thick to provide secure anchorage for a pivotal member 13 which may be either a screw or other form of headed fastener. However, this member 13 is preferably immovably secured in the end 11, so the lock can not be taken apart or disassembled, and therefore, the box can not be opened without breaking it or operating.

the lock according to its particular combination. In securing the fastening member l3 in place, 1ts shankmay be driven into an aperture of the end member 11, whichaperture is sufficiently small to insure a tight fit of this anchoring member or pivot of the rotary lockmemberwhich is indicated at 14, this look member being centrally or axially bored to snuglyfit around the upper or headed part ofthe pivotal member 13. This member '14 is provided with an annular series of pointers or index elements 15 each provided with an adjacent index numeral which refers thereto. These index elements range from 1 to 12, inclusive, in the device here illustrated, although there may be a greater or less number of such index elements in other forms of the invention. The lid or closure 16 is provided with an arrow or other I seen that the closure 16 has a slot 18 therethrough, and between this slot and the index element 17 is secured a stud 20. This stud extends into an annularrecess 21 of the member 14." A radially disposed recess 22 is in open communication with the recess 21 and is I adapted to receive the stud 20 when the closure 16 is slid longitudinally toward its pivotal member 13. The member 14 is also formed with an annular. recess 23 around the central bearing opening which receives the pivot 13, and within this latter recess is fitted a compression spring 24L which is of helical formation and surrounds the pivot member 13. This spring 2tbears upon a disk or lock'member. 25 such as shown separately in Figure 4:, and this member ispreferably of sheet metal, has a central bearing opening 26 which fits around thepiv'ot 13*,has av radially dispesed or 27 which is adapted to receive the stud 20, and has an upright stud or lug 28 which is preferably struck up from an aperture in the body of this disk. This stud 28 cooperates with a depending stud or lug 29 of the rotary lock member 14, and in this connection, it is pointed out that either of these studs 28 or 29, or both of them,. may be in any one of an infinite number of positions, respectively, but essentially in position to cooperate with one another, that is, the stud 28 must be in the path of the stud 29. during rotation of the latter, and the cooperation of these studs effects rotation of the lock member 25 by the lock member 14:. It will be seen thatthe member 25 lies fiata'gainst the upper, surface of themembor 16, so all parts of this lower surface trictionally engage with the upper surface of the member 16. There is no frictional engagement of the member 14 against the upper surface of the member 25,'and the frictional engagement of the spring 2d iscomined to the central part of the disk 25, and therefore, the pressure of the spring 24 against the member 16 causes this disk 25 .to remain stationary while the, member'14 is being rotated and while the studs 28 and '29 are. not in engagement with one another. However, when the member, 29 comes into contact with-the member28 and continues. its rotation, it carries the disk 25 therewith, andit its rotation is discontinued when the notch 27 is between the Stud 20 and the pivot 13, the lid 16 could be sild toward the pivot 18 if the notch 22 was also in registration with the stud 20. -However, the relative positions of the studs 28 and 29 to the notches 22 and'27 should be such that these notches22 and 2'7 are out of registration with one another when the studs 28 and 29 are cooperating with one another, so it is necessary to turn the recess 22 into registration with the recess 27 after the latter has been placed into registration with the stud 20; so now, the closure 16 can be slid toward the pivot 13, carrying its'stud 20 into the registering recesses 22 and2'l', and now, the closure 16 can be swung around the pivot 13 for opening the box.

The: box-end" 12 has an upward extension 12 -againstwhich the opposite end of the closure 16'abuts, and this part 12?. may be provided with a dove-tail notch such .as indicated at 12? of Figure 1, toreceive a clovetail projection 16 of the closure 16, or the closure may be such as shown ii -,Fi r, 8 in which it is indicatedby the reference character 160, having a beveled end 160 and the end120 having an undercut element 120 so thisend of the closure cannotbe liftedbecause it is locked down by the undercut surface -12 (Fig.1) 01 120 of Fig. 8. )These two forms of interlocking elements at 'theleftends of Figures 1 and 8 serve to show that thisinterdocking arrangement is not. confined to any specific form, and obviously, one or more dowels (not shown) might be unployed for connecting the closure in interlocking engagement with the upper end of the end wall member opposite to that which contains the pivot 13 and its adjuncts.

For opening the box, the rotary member or knob 1st is first turned in one direction, for instance, counter-clockwise until. the proper index member 15 registers w h the index member 17, therebyindicating hat the notch or recess 27 is registering with the stud 20, and then the rotary member 14-. turned in the opposite or clockwise direction, so its stud 29 leaves the stud 28, and so the notch or recess 27 remains in registration with the stud '20 while the knob. or rotary member 1a is continued in its movement until theproper index member 15 registers with the index member 17 for indicatingthat the recess'22 is registering with the stud 20; and now, both recess 22 and 2'? being in registration with the stud 20, the, user grasps the closure 16 and slides it toward the stud 13 until the clovetail. part 16 is out oi the notch 12 o r,nntil the beveled end 160 isremoved. a suiiicient distance from the undercut, part .120 to permit the closure to be turned about the pivot 13. v I

From the foregoing, it is seen that wehave provided a very effective and comparatively inexpensive device which is; capable of many uses, and which ,is susceptible of various changes of construction and arrangement within the scopeof the inventive ideas as implied, and claimed hereinafter.

1 In manufacturing these devices, the disks such .as shown in Figure 4} may have their studs 28 placed in various positions, and'this may be effected by any appropriate means. Instead of these lugs 28 being struck up, the disks 25 may be formed with an annular series of apertures, and the lugs may be separately formed and each forced into any one of such apertures, thereby varying the positions of the lugs 28 in accordance with the respective combinations of the devices.

What we claim as our invention is:

1. The combinationin .a box or the like having side. walls and end walls, a closure thereon and having substantially interlocked engagement with one of said end walls, a

pivot extending from the other oneof said end'walls; saidclosure having a slot through which said pivot extends, a stud extending ,up from said closure, and a rotary member ,on said pivot an} having an annular recess and a radially disposed recess communicating awith oneanother and adaptedto receive said stud alternately, for the purpose specified. '2. The combination in a boX or the like having side walls and end walls, a closure thereon and having substantially interlocked engagement with one of said end walls, a pivot extending from the other one of said end walls, said closure having a slot through which said pivot extends, a stud extending up from said closure, a rotary member on said pivot and having an annular recess and a radially disposed recess communicating with one another and adapted to receive said stud alternately, a disk seated on said closure and journaled on said pivot and having a radially disposed recess adapted to register with the recess of said rotary member, means on said rotary member for rotating said disk so as to bring its recess into and out of registration With said stud, and a spring between said rotary member and said disk for holding the latter in frictional engagement With said closure and thereby pre ventinguntimely rotation of the disk during partial rotation of said rotary member, for the purpose specified.

- 3. The structure defined by claim 1, and index members carried by said closure and rotary member and adapted to register With one another for indicating When said stud is in registration with said radially disposed recess In testimony whereof We afiix our signatures.

MILON H. BORZIN. ARSENIE MITRU. 

